Pitting cleaner



H. J. SMITH FITTING CLEANER May 2, 1939.

Filed Dec. 6, 1938 2 Sheets-Sheet 1 Inventor By 3% I w 1 W M A ttorneusMay 2, 1939 Q H. J. VSMITH 2,156,744

FITTING CLEANER Filed Dec. 6, 1958 2 Sheets-Sheet 2 Inventor W AttorneysPatented May 2, 1939 UNITED STATES PATENT OFFICE.

1 Claim.

This invention appertains to new and useful improvements in tools forconveniently cleaning copper sweat fittings and various other types offittings.

The principal object of the present invention is to provide a cleaner ofthe character stated which will -be handy to use and in structure issimple and not susceptible to the ready development of defects.

Other objects and advantages of the invention will become apparent tothe reader of the following specification.

In the drawings- Figure 1 represents a side elevational view with aportion of the fitting broken away to disclose the tool insertedtherein.

Figure 2 is a longitudinal sectional through the tool.

Figure 3 is a fragmentary longitudinal sectional View showing theretaining arm in disengaged position.

Figure 4 is a section on the line 4-4 of Figure 1.

Figure 5 is an end elevational view of the cleaner.

Figure 6 is a perspective view of a roll of sandpaper or the like.

Referring to the drawings, wherein like numerals designate like parts,it can be seen that the invention consists of the cylindrical head 5having the V-shaped notch 6 extending longitudinally thereof and at itsfree end merging with the inwardly extending groove terminating at theend pocket 8, through which the pin 5 is disposed and which serves toreceive the eye end I at the foot portion portion ll being disposed inthe groove 7 while the arm I2 is disposed in the groove 6 so as toengage over the end portions of a sheet l3 of sand-paper or the like,and retain the sheet of sand-paper circumscribing the head 5. The headis reduced as at M and extended to provide the threaded shank I 5, thegroove 6 extending across the reduced portion l4 and terminating at amidpoint of the shank I 5. The arm I2 is olfset as at a to follow thereducement l4 and the view H of the arm l2, the foot portion thereofextending from the off-set a and denoted by the reference character b isprovided with teeth 16 which will match the threads of the shank 15 sothat the knurled nut I! can be fed on the shank l and over the armextension 5 b so as to fasten the arm in sand-paper-holding position asshown in Figures 1 and 2.

The free end of the shank I5 is beveled as at I 8 and is seated in thetapered recess H! of the knurled knob 20. Obviously, by engaging the 10tool into a fitting 2! in substantially the manner shown in Figure 1,the tool can be rotated for thoroughly cleaning the interior of thefitting.

It is preferable that the arm l2 be of V-shape or triangular shape incross section.

While the foregoing specification sets forth the invention in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spirit andscope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is- A tool of thecharacter described comprising an elongated body having a longitudinallyextending slot therein, one end of the body being formed with a pocket,a channel extending from the pocket and communicating with the slot, anL- shaped arm having its lower portion disposed into the pocket, a pinextending across the pocket and through the lower end of the L-shapedarm, the horizontal portion of the arm being adapted to be disposed inthe channel while the vertical portion is disposed in the slot, theupper portion of the arm provided with serrations at its outer side,said elongated body being provided with threads at its portion adjacentthe serrations of the arm and with which the serrations are matchable, anut feedable on the threaded portion of the body and upper portion ofthe arm, and a strip of abrasive material adapted to be disposed aroundthe body and across the said slot, and holding means on the body forholding the arm disposed into the slot and against the said strip.

. HENRY J. SMITH.

